diff --git a/radio/src/FreeRTOSConfig.h b/radio/src/FreeRTOSConfig.h
index a751c99bc..7563cb953 100644
--- a/radio/src/FreeRTOSConfig.h
+++ b/radio/src/FreeRTOSConfig.h
@@ -41,7 +41,7 @@ extern uint32_t SystemCoreClock;
 #define configUSE_16_BIT_TICKS          0
 #define configIDLE_SHOULD_YIELD         1
 // Use notifications
-#define configUSE_MUTEXES               0
+#define configUSE_MUTEXES               1
 #define configQUEUE_REGISTRY_SIZE       0
 #define configUSE_RECURSIVE_MUTEXES     0
 #define configUSE_MALLOC_FAILED_HOOK    0
diff --git a/radio/src/rtos.h b/radio/src/rtos.h
index 69c54aab8..dfb6218c4 100644
--- a/radio/src/rtos.h
+++ b/radio/src/rtos.h
@@ -206,7 +206,7 @@ extern "C++" {
   
   static inline void _RTOS_CREATE_MUTEX(RTOS_MUTEX_HANDLE* h)
   {
-    h->rtos_handle = xSemaphoreCreateBinaryStatic(&h->mutex_struct);
+    h->rtos_handle = xSemaphoreCreateMutexStatic(&h->mutex_struct);
     xSemaphoreGive(h->rtos_handle);
   }